Home / 5,642.68-7,783.50-3,545.08

Finding the Fourth Proportional to 5,642.68, 7,783.50 and 3,545.08

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Solution

The fourth proportional to 5,642.68, 7,783.50 and 3,545.08 is: 4,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642.68 : 7,783.50 = 3,545.08 : x
  2. Step 2: Convert to fraction form
    5,642.68/7,783.50 = 3,545.08/x
  3. Step 3: Cross multiply
    5,642.68x = 7,783.50 × 3,545.08
  4. Step 4: Simplify right side
    5,642.68x = 27,593,130.18
  5. Step 5: Solve for x
    x = 27,593,130.18/5,642.68
  6. Step 6: Final answer
    x = 4,890.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.